Quincy Air Compressor 40 HP Tankless Rotary Screw with Dryer 230/460V 3 Phase

The 4152028080 is a 40 HP gear-driven rotary screw compressor designed to deliver continuous air from a surprisingly compact cabinet. It measures 55.1" long × 30.7" wide × 49.2" high and weighs 1,087 lbs, making its 49.2" height the standout feature for installations with limited headroom. The 100% duty cycle package includes an integrated refrigerated air dryer, while the tankless design lets you pair the compressor with a receiver sized and positioned for your specific air system.

The gear-driven airend eliminates belt tensioning, belt replacement and power loss from belt slip. The TEFC motor includes IP 55 wash-down protection and Wye-Delta reduced-voltage starting, while the refrigerated dryer removes moisture before it reaches your distribution system. An aftercooler, spin-on fluid filter, oil sight glass, constant fluid monitoring and low-oil shutdown on both engine and pump support continuous operation. The Infologic2 Basic Controller adds programmable auto-restart, remote start/stop and networking capability for up to six QGS compressors, with the display providing pressure, temperature and dewpoint information. The result is a compact package that combines compression and air treatment without requiring a separate dryer cabinet.

For installation, plan around the 55.1" × 30.7" footprint and 49.2" height, with additional clearance for the hinged doors, detachable panels and cooling airflow. The compressor requires 230/460V 3-phase power; Quincy does not publish an amp draw or breaker size, so a certified electrician should size the feeder and protection from the machine's nameplate. The compressor is supplied without a receiver tank, so existing or separately specified storage is required. No electronic drain valve is fitted.

This configuration suits manufacturing facilities, plant rooms and production shops with limited headroom, as well as operations that already have a receiver and want to add compressor capacity without duplicating storage. It is especially useful where continuous air demand, integrated drying and a compact installation footprint all matter.

Will It Fit? Siting and Power

The cabinet. 55.1" x 30.7" x 49.2" and 1,087 lbs. Measure your doorway and headroom against those numbers before ordering; a compressor that fits the room but not the route into it is a genuinely common and expensive mistake. Leave working space around the hinged doors and detachable panels. The machine is designed for service access from the outside, but only if you have not built shelving or equipment against it.

Electrical. Listed as 230/460V AC, 3-Phase. Quincy publishes neither an amp draw nor a recommended breaker size, stating instead that a certified electrician should be consulted, and we will not put a number in that gap. Your electrician should size the feeder and overcurrent protection from the nameplate on the delivered machine. Have that conversation before delivery, not after it.

Heat. A machine rated for a 100% duty cycle is designed to run continuously, and the electrical energy it consumes ultimately becomes heat that must be removed from the room. A small cabinet does not produce less heat than a larger one; it simply concentrates the equipment into a smaller footprint. Plan ventilation accordingly. Confirming that the installation site can accommodate the machine's power, heat and service requirements is the customer's responsibility.

Why a Small Cabinet Is Worth Paying Attention To

Floor space in a working shop is not free, and plant rooms are often whatever space was left over. A 40 HP package measuring just 55.1" long and 49.2" tall can change what is possible: it can sit beneath an existing mezzanine, tuck under low ductwork, or run against the wall of a service bay instead of consuming a corner of the shop floor.

The tankless configuration is part of that same argument. Because the receiver is separate, you can position it where it makes the most sense for your installation, including outside the building or in an elevated location where permitted by the installation requirements.

The trade-off is straightforward: if you do not already have a suitable receiver, you will need to purchase one. A tankless compressor connected directly to the shop main is not a complete compressed-air storage system.

Gear Drive, and a Dryer Inside the Same Enclosure

The airend is gear driven rather than belt driven. There is no drive belt to tension or replace, and no belt slip between the motor and airend. On a machine designed for continuous operation, eliminating that wear item simplifies the maintenance schedule and removes one potential source of power transmission loss.

The motor is a TEFC design with IP 55 wash-down protection, and the package uses a Wye-Delta reduced-voltage start to reduce electrical inrush during startup.

The refrigerated air dryer is integrated into the enclosure. Compressed air can carry moisture downstream, where it can contribute to corrosion in piping and equipment and create problems for applications sensitive to water contamination. Removing that moisture as part of the compressor package simplifies the installation and avoids dedicating separate floor space to a dryer.

An aftercooler, oil sight glass, spin-on fluid filter, constant fluid monitoring and low-oil shutdown on both engine and pump complete the package.

Control is handled by the Infologic2 Basic Controller, with programmable auto-restart and remote start/stop. It can network up to six QGS compressors, while the display provides pressure, temperature, dewpoint, motor-start and general status information.

Perfect For

• Shops short on floor space. The 49.2" height and 55.1" length are the main advantages of this configuration.
• Plant rooms with low headroom. Useful beneath mezzanines, ductwork or other overhead restrictions.
• Facilities that already own a receiver. The tankless configuration avoids paying for another receiver when suitable storage is already available.
• Continuous production air. The 100% duty-cycle rating is designed for sustained operation.

What's in the Box

Quincy lists this package as the gear-driven QGS rotary screw compressor, the Infologic2 Basic Controller with display panel, the 100% duty-cycle TEFC motor and the integrated refrigerated air dryer, together with an aftercooler, oil sight glass, pressure gauge, air filter and low-oil shutdown on both engine and pump.

Specifications

Certification, Stated Honestly

An ASME certification is recorded on the specification sheet for this unit. Be precise about what that means: ASME coding applies to pressure vessels, while this configuration ships without a receiver — the listed tank capacity is 0 gallons. If a coded vessel is what your inspector or insurer requires, that question belongs to the receiver you connect to this compressor. We will confirm exactly what the certification on this SKU covers before you commit.

Separately, our product data records no independent electrical or equipment safety listing for the packaged machine, and we are not going to imply that one exists. If your jurisdiction, insurer or corporate standard requires an independent third-party listing for installed equipment, establish that requirement before purchase rather than discovering it at inspection.

Shipping and Delivery

Ships by freight within the lower 48 states, with the shipping cost quoted live at checkout based on the delivery address you enter rather than estimated on this page. At 1,087 lbs, the unit requires a dock or forklift for unloading. If you have neither, terminal pickup from the carrier is the alternative.

Residential delivery carries a residential fee, shown at checkout where applicable. Inspect the crate before signing and record any damage on the bill of lading at the time of delivery. Once a clean bill is signed, a concealed-damage claim becomes much more difficult to pursue. Take photographs while the driver is still on site; those are often the evidence that makes a freight claim straightforward.

Warranty

Published standard coverage is 1 Year for consumer use and 1 Year for commercial use. An extended 3-Year factory warranty is available, and the True Blue 5-Year warranty applies when a Quincy-authorized start-up commissions the machine.

That distinction matters: the longest warranty term depends on who performs the start-up, so the decision needs to be made before the compressor is first energized, not after it is already in service.

Whatever warranty term applies, do not open the airend, dryer circuit or motor before a claim has been raised and assessed. A disassembled component may be treated as an unverifiable failure and can complicate warranty coverage. Keep the commissioning paperwork together with your fluid and filter service records; both may be requested when a claim is evaluated.